== sanity test 60c: unlink file when mds full ============ 19:27:05 (1786750025)
create 5000 files
 - open/close 480 (time 1786750040.76 total 10.01 last 47.96)
 - open/close 928 (time 1786750050.76 total 20.01 last 44.77)
 - open/close 1286 (time 1786750060.78 total 30.03 last 35.75)
 - open/close 1718 (time 1786750070.79 total 40.04 last 43.16)
 - open/close 2224 (time 1786750080.80 total 50.05 last 50.54)
 - open/close 2834 (time 1786750090.81 total 60.06 last 60.96)
 - open/close 3478 (time 1786750100.82 total 70.07 last 64.34)
 - open/close 4024 (time 1786750110.83 total 80.08 last 54.54)
 - open/close 4537 (time 1786750120.84 total 90.09 last 51.22)
total: 5000 open/close in 98.91 seconds: 50.55 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1786750134 ; total 0 ; last 0)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0